Yanmar 3TNV82A-B Service Manual page 115

Periodic Maintenance Procedures
CAUTION
If the fuel filter / water separator is
positioned higher than the fuel level in
the fuel tank, water may not drip out
when the fuel filter / water separator
drain cock is opened. If this happens,
turn the air vent screw on the top of the
fuel filter / water separator 2-3 turns
counterclockwise.
Be sure to tighten the air vent screw
after the water has drained out.
CAUTION
• ALWAYS be environmentally
responsible.
• Follow the guidelines of the EPA or
other governmental agencies for the
proper disposal of hazardous
materials such as engine oil, diesel
fuel and engine coolant. Consult the
local authorities or reclamation facility.
• NEVER dispose of hazardous
materials irresponsibly by dumping
them into a sewer, on the ground, or
into ground water or waterways.
• Failure to follow these procedures may
seriously harm the environment.
Drain the fuel filter / water separator whenever
there are contaminants, such as water, collected in
the bottom of the cup. NEVER wait until the
scheduled periodic maintenance if contaminants
are discovered.
TNV DI Service Manual
The cup of the separator is made from semi-
transparent material. In the cup is a red colored
float ring. The float ring will rise to the surface of the
water to show how much needs to be drained. Also,
some optional fuel filter / water separators are
equipped with a sensor to detect the amount of
contaminants. This sensor sends a signal to an
indicator to alert the operator.
Drain the fuel filter / water separator as follows:
1. Position an approved container under the fuel
filter / water separator (Figure 5-7, (1)) to
collect the contaminants.
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2. Close (Figure 5-7, (2)) the fuel cock
(Figure 5-7, (3)).
3. Loosen the drain cock (Figure 5-7, (4)) at the
bottom of the fuel filter / water separator. Drain
any water collected inside.
4. Hand-tighten the drain cock.
If the fuel filter / water separator is
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positioned higher than the fuel level in
the fuel tank, water may not drip out
when the fuel filter / water separator
drain cock is opened. If this happens,
turn the air vent screw on the top of the
fuel filter / water separator 2-3 turns
counterclockwise.
Be sure to tighten the air vent screw
after the water has drained out.
PERIODIC MAINTENANCE
(2)
(3)
(4)
Figure 5-7
CAUTION
(1)
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5-25